About Us

NitroFlex Fitness Gym is a family-owned gym in Chester, NJ, where expert coaching, meaningful relationships, and a shared commitment to progress come together.

Family-Owned & Community-Focused

Expert Coaching & Personal Support

Complete Fitness Experience

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Our Story

Where Strength Meets Community

At NitroFlex, we believe fitness should strengthen more than your body.


It should build confidence. Create connections. Improve the way you move and feel. Give you the support to keep going when progress feels difficult.


That belief is at the heart of everything we do.


NitroFlex Fitness Gym was built to bring the resources of a full-service gym together with the attention, coaching, and accountability of a private training facility. Members have access to quality equipment, group fitness classes, personal training, small group coaching, youth and teen programs, athletic performance training, nutrition support, and open-gym training—all within one welcoming local community.

NitroFlex is built around relationships. Our members are not numbers on a spreadsheet. They are individuals with different goals, experiences, challenges, and reasons for showing up.


We take the time to know them.

Family-Owned & Community-Focused

Expert Coaching & Personal Support

Complete Fitness Experience

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Owner of nitroflex gym

Meet Kerri

Dance and movement have always been a big part of Kerri’s life. Growing up on Long Island, New York, she spent years pursuing her passion for dance, building her dance career, and even teaching tap. She studied at the Lee Strasberg Theatre Institute before eventually moving to New Jersey. Her love of dance naturally evolved into a passion for strength training and fitness, giving her a deep appreciation for the connection between movement, confidence, and overall well-being.


As a mother of four, Kerri understands the importance of balancing family, work, and personal wellness. She believes in leading by example and encouraging her children and those around her to make health and fitness a part of their everyday lives.


After serving as the Fitness Director at NitroFlex Gym for almost 10 years, Kerri took the next step in her journey and became the owner. Having spent nearly a decade building relationships with members and being part of the NitroFlex community, she knew just how special the gym was. Her vision was to build on that strong foundation while continuing to improve the facility, expand its offerings, and create an even better experience for its members.


Above all, Kerri wants NitroFlex to be a place where everyone feels welcome, supported, and motivated, regardless of their age or fitness level. Whether someone is stepping into a gym for the first time or has been training for years, her goal is to create an environment where members feel comfortable, challenged, and proud of what they can accomplish.



For Kerri, NitroFlex is more than just a gym. It’s a place where members become friends, confidence is built, and everyone is encouraged to be their best. It’s a community that truly lives up to its motto: “Where Strength Meets Community.”


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Vetra Fashion

Mova Fitness

Email campaign

Targeted digital marketing and social storytelling that turned seasonal drops into lasting impact.

Digital marketing
Marketing strategy
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A bold campaign that reimagined movement, energy, and brand engagement online.

Social media

Meet the Coaches

Experienced Guidance. Genuine Commitment.

The NitroFlex coaching team is a cornerstone of the member experience. Our certified personal trainers and instructors bring knowledge, experience, and a genuine passion to helping you train with greater purpose and confidence.

Aidan Mudryk

Manager and Certified Personal Trainer

Deborah Adkins

Certified Personal Trainer

Debbie is a seasoned strength training specialist with two decades of experience, having dedicated herself to the field since 2003.

Beth Helmstetter

NASM Certified Personal Trainer

NASM Certified Nutrition Coach

Social Media Manager

Beth is a NASM Certified Personal Trainer and NASM Certified Nutrition Coach, teaching a diverse range of dynamic group fitness classes, including Nitro Ryde, HIIT, Bootcamp, Full Body Strength, Bodyweight Strength, Butts & Guts, Barre and more.

Kevin Derk

Certified Personal Trainer

Sports Conditioning

27 years of experience with individuals of all different fitness levels. He specializes in sports conditioning (golf, skiing) for the 40 and over athletes.

Brad Sims

NASM Certified Personal Trainer

NASM Corrective Exercise Specialist

Brad has been helping clients achieve their fitness goals since 2012. He's NASM-certified in corrective exercise, performance enhancement, nutrition, and is a Level 2 Spartan OCR Coach.

Fredy Palacios

Certified NASM Personal Trainer
Professional in Sport Conditioning

My passion for fitness started as a varsity athlete. My approach emphasizes age-appropriate programming, focusing on cardiovascular and strength training.

Lara Ford

Certified Personal Trainer

Group Fitness Instructor

Lara is an AFAA-certified Group Fitness Instructor and an IFA-certified Personal Trainer. She teaches Cycling, Yoga, Pilates, Barre, TRX, Body Pump, Rowing, Bootcamp, HIIT, and more.

Randy Jones

Certified Personal Trainer

Group Fitness Instructor

Randy has over 25 years of experience as a personal trainer and group fitness instructor, working with athletes, seniors, and individuals of all fitness levels.

Liane Pluchinos

AFAA Certified Personal Trainer

Fitness Instructor

Liane is an AFAA certified trainer with 20+ years of experience, teaching everything from strength and spin to HIIT and bootcamp—with a fun, high-energy style (and some dancing).

Steven Ackerman 

NASM Certified Personal Trainer

Steven is a NASM certified personal trainer who has been specializing in both athletic training and overall health and wellness for individuals of all ages and fitness levels for over 5 years.

Aidan Mudryk

Manager and Certified Personal Trainer

Kim Trupp

ISSA Certified Personal Trainer

Certified TRX Instructor

Kathy Batsides

NASM Certified Personal Trainer

NASM certified Nutrition Coach

Tiffany Neill

coming soon

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Kim Trupp

I am an ISSA Certified Personal Trainer and a Certified TRX Instructor. I have 12 years of experience and have trained clients of all ages and fitness levels.


My passion for strength training came later in life. I was always very active and I’ve always been concerned with being healthy and strong. There is nothing more rewarding than seeing your clients reach their fitness goals and to see their transformation both physically and mentally. You are never too old to start strength training. Exercise not only helps the body but the mind and spirit as well.

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Kathy Batsides

NASM Certified Personal Trainer

NASM certified Nutrition Coach

Kathy turned her lifelong passion for health and fitness into a career and has been a Certified Personal Trainer for over ten years. She believes fitness is about more than workouts—it’s about building confidence, staying strong through every season of life, and feeling supported along the way.


Her training style centers on functional, strength-based movement that helps clients feel capable in everyday life. With a strong understanding of how strength training supports bone density, joint health, and long-term mobility, she is especially passionate about helping women build and maintain muscle as they age in a way that feels empowering and approachable.


She works with clients of all ages and fitness levels, creating training that is effective, enjoyable, and sustainable. Being part of a close-knit, community-focused gym allows her to do what she loves most—helping people feel stronger, more confident, and at home in their fitness journey.

NitroFlex combines the variety and equipment of a traditional fitness facility with the personal connection and focused guidance of a coaching-led gym.

The NitroFlex Difference

Personal Attention in a Full-Service Gym

Known by Name

Our members are part of a community, not lost in a crowd. We take the time to understand who you are, what you are working toward, and how we can support you.


Coaching With Purpose

Our experienced coaches provide instruction, encouragement, accountability, and personalized guidance to help you train safely and make meaningful progress.


Training for Every Level

Beginners, experienced lifters, adults, teens, families, and athletes are all welcome. Training can be adapted to your abilities, experience, and goals.


 Everything Under One Roof

From group fitness and personal training to open-gym access, athletic performance, teen fitness, and nutrition coaching, NitroFlex provides multiple ways to build strength and improve your health.

Family-Owned & Community-Focused

Expert Coaching & Personal Support

Complete Fitness Experience

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Black outline icon of a person lifting a barbell overhead on a white background

Our Commitment

We Are Invested in Your Progress

At NitroFlex, we are here to provide a better fitness experience—one built on quality, accountability, relationships, and a genuine commitment to our members’ success.


  • To provide a clean, welcoming, and well-equipped environment.
  • To offer knowledgeable coaching and meaningful support.
  • To treat every member as an individual.
  • To create opportunities for people of all ages and fitness levels to grow stronger.
  • To build a community people are proud to be part of.
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Start Strong.

Stay Supported.

Join NitroFlex Today.

Visit NitroFlex Fitness Gym, meet our team, explore the facility, and experience a community built to help you become stronger.